Infrastructure in Campbell Bay is basic but has seen critical upgrades in recent years.
* **Electricity**: Power is primarily generated by diesel generator sets run by the local electricity department. The government is slowly introducing solar power initiatives to reduce diesel dependence. * **Water**: Piped water is supplied by the administration, sourced from local streams and rain-fed reservoirs. * **Telecom & Internet**: Historically, connectivity was a massive challenge, relying on slow satellite links. In 2020, Campbell Bay was connected to the Chennai-Andaman & Nicobar Islands (CANI) undersea submarine optical fiber cable, bringing high-speed broadband and 4G cellular networks (mostly BSNL and Airtel) to the town for the first time. * **Healthcare**: The Community Health Center (CHC) in Campbell Bay handles basic medical needs, but serious conditions require aeromedical evacuation to Port Blair or the mainland.